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|
/* $Id: newport.h,v 1.2 1996/06/10 16:38:34 dm Exp $
* newport.h: Defines and register layout for NEWPORT graphics
* hardware.
*
* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
*/
#ifndef _SGI_NEWPORT_H
#define _SGI_NEWPORT_H
typedef volatile unsigned long npireg_t;
union npfloat {
volatile float f;
npireg_t i;
};
typedef union npfloat npfreg_t;
union np_dcb {
npireg_t all;
struct { volatile unsigned short s0, s1; } hwords;
struct { volatile unsigned char b0, b1, b2, b3; } bytes;
};
struct newport_rexregs {
npireg_t drawmode1; /* GL extra mode bits */
#define DM1_PLANES 0x00000007
#define DM1_NOPLANES 0x00000000
#define DM1_RGBPLANES 0x00000001
#define DM1_RGBAPLANES 0x00000002
#define DM1_OLAYPLANES 0x00000004
#define DM1_PUPPLANES 0x00000005
#define DM1_CIDPLANES 0x00000006
#define NPORT_DMODE1_DDMASK 0x00000018
#define NPORT_DMODE1_DD4 0x00000000
#define NPORT_DMODE1_DD8 0x00000008
#define NPORT_DMODE1_DD12 0x00000010
#define NPORT_DMODE1_DD24 0x00000018
#define NPORT_DMODE1_DSRC 0x00000020
#define NPORT_DMODE1_YFLIP 0x00000040
#define NPORT_DMODE1_RWPCKD 0x00000080
#define NPORT_DMODE1_HDMASK 0x00000300
#define NPORT_DMODE1_HD4 0x00000000
#define NPORT_DMODE1_HD8 0x00000100
#define NPORT_DMODE1_HD12 0x00000200
#define NPORT_DMODE1_HD32 0x00000300
#define NPORT_DMODE1_RWDBL 0x00000400
#define NPORT_DMODE1_ESWAP 0x00000800 /* Endian swap */
#define NPORT_DMODE1_CCMASK 0x00007000
#define NPORT_DMODE1_CCLT 0x00001000
#define NPORT_DMODE1_CCEQ 0x00002000
#define NPORT_DMODE1_CCGT 0x00004000
#define NPORT_DMODE1_RGBMD 0x00008000
#define NPORT_DMODE1_DENAB 0x00010000 /* Dither enable */
#define NPORT_DMODE1_FCLR 0x00020000 /* Fast clear */
#define NPORT_DMODE1_BENAB 0x00040000 /* Blend enable */
#define NPORT_DMODE1_SFMASK 0x00380000
#define NPORT_DMODE1_SF0 0x00000000
#define NPORT_DMODE1_SF1 0x00080000
#define NPORT_DMODE1_SFDC 0x00100000
#define NPORT_DMODE1_SFMDC 0x00180000
#define NPORT_DMODE1_SFSA 0x00200000
#define NPORT_DMODE1_SFMSA 0x00280000
#define NPORT_DMODE1_DFMASK 0x01c00000
#define NPORT_DMODE1_DF0 0x00000000
#define NPORT_DMODE1_DF1 0x00400000
#define NPORT_DMODE1_DFSC 0x00800000
#define NPORT_DMODE1_DFMSC 0x00c00000
#define NPORT_DMODE1_DFSA 0x01000000
#define NPORT_DMODE1_DFMSA 0x01400000
#define NPORT_DMODE1_BBENAB 0x02000000 /* Back blend enable */
#define NPORT_DMODE1_PFENAB 0x04000000 /* Pre-fetch enable */
#define NPORT_DMODE1_ABLEND 0x08000000 /* Alpha blend */
#define NPORT_DMODE1_LOMASK 0xf0000000
#define NPORT_DMODE1_LOZERO 0x00000000
#define NPORT_DMODE1_LOAND 0x10000000
#define NPORT_DMODE1_LOANDR 0x20000000
#define NPORT_DMODE1_LOSRC 0x30000000
#define NPORT_DMODE1_LOANDI 0x40000000
#define NPORT_DMODE1_LODST 0x50000000
#define NPORT_DMODE1_LOXOR 0x60000000
#define NPORT_DMODE1_LOOR 0x70000000
#define NPORT_DMODE1_LONOR 0x80000000
#define NPORT_DMODE1_LOXNOR 0x90000000
#define NPORT_DMODE1_LONDST 0xa0000000
#define NPORT_DMODE1_LOORR 0xb0000000
#define NPORT_DMODE1_LONSRC 0xc0000000
#define NPORT_DMODE1_LOORI 0xd0000000
#define NPORT_DMODE1_LONAND 0xe0000000
#define NPORT_DMODE1_LOONE 0xf0000000
npireg_t drawmode0; /* REX command register */
/* These bits define the graphics opcode being performed. */
#define NPORT_DMODE0_OPMASK 0x00000003 /* Opcode mask */
#define NPORT_DMODE0_NOP 0x00000000 /* No operation */
#define NPORT_DMODE0_RD 0x00000001 /* Read operation */
#define NPORT_DMODE0_DRAW 0x00000002 /* Draw operation */
#define NPORT_DMODE0_S2S 0x00000003 /* Screen to screen operation */
/* The following decide what addressing mode(s) are to be used */
#define NPORT_DMODE0_AMMASK 0x0000001c /* Address mode mask */
#define NPORT_DMODE0_SPAN 0x00000000 /* Spanning address mode */
#define NPORT_DMODE0_BLOCK 0x00000004 /* Block address mode */
#define NPORT_DMODE0_ILINE 0x00000008 /* Iline address mode */
#define NPORT_DMODE0_FLINE 0x0000000c /* Fline address mode */
#define NPORT_DMODE0_ALINE 0x00000010 /* Aline address mode */
#define NPORT_DMODE0_TLINE 0x00000014 /* Tline address mode */
#define NPORT_DMODE0_BLINE 0x00000018 /* Bline address mode */
/* And now some misc. operation control bits. */
#define NPORT_DMODE0_DOSETUP 0x00000020
#define NPORT_DMODE0_CHOST 0x00000040
#define NPORT_DMODE0_AHOST 0x00000080
#define NPORT_DMODE0_STOPX 0x00000100
#define NPORT_DMODE0_STOPY 0x00000200
#define NPORT_DMODE0_SK1ST 0x00000400
#define NPORT_DMODE0_SKLST 0x00000800
#define NPORT_DMODE0_ZPENAB 0x00001000
#define NPORT_DMODE0_LISPENAB 0x00002000
#define NPORT_DMODE0_LISLST 0x00004000
#define NPORT_DMODE0_L32 0x00008000
#define NPORT_DMODE0_ZOPQ 0x00010000
#define NPORT_DMODE0_LISOPQ 0x00020000
#define NPORT_DMODE0_SHADE 0x00040000
#define NPORT_DMODE0_LRONLY 0x00080000
#define NPORT_DMODE0_XYOFF 0x00100000
#define NPORT_DMODE0_CLAMP 0x00200000
#define NPORT_DMODE0_ENDPF 0x00400000
#define NPORT_DMODE0_YSTR 0x00800000
npireg_t lsmode; /* Mode for line stipple ops */
npireg_t lspattern; /* Pattern for line stipple ops */
npireg_t lspatsave; /* Backup save pattern */
npireg_t zpattern; /* Pixel zpattern */
npireg_t colorback; /* Background color */
npireg_t colorvram; /* Clear color for fast vram */
npireg_t alpharef; /* Reference value for afunctions */
unsigned long pad0;
npireg_t smask0x; /* Window GL relative screen mask 0 */
npireg_t smask0y; /* Window GL relative screen mask 0 */
npireg_t _setup;
npireg_t _stepz;
npireg_t _lsrestore;
npireg_t _lssave;
unsigned long _pad1[0x30];
/* Iterators, full state for context switch */
npfreg_t _xstart; /* X-start point (current) */
npfreg_t _ystart; /* Y-start point (current) */
npfreg_t _xend; /* x-end point */
npfreg_t _yend; /* y-end point */
npireg_t xsave; /* copy of xstart integer value for BLOCk addressing MODE */
npireg_t xymove; /* x.y offset from xstart, ystart for relative operations */
npfreg_t bresd;
npfreg_t bress1;;
npireg_t bresoctinc1;
volatile int bresrndinc2;
npireg_t brese1;
npireg_t bress2;
npireg_t aweight0;
npireg_t aweight1;
npfreg_t xstartf;
npfreg_t ystartf;
npfreg_t xendf;
npfreg_t yendf;
npireg_t xstarti;
npfreg_t xendf1;
npireg_t xystarti;
npireg_t xyendi;
npireg_t xstartendi;
unsigned long _unused2[0x29];
npfreg_t colorred;
npfreg_t coloralpha;
npfreg_t colorgrn;
npfreg_t colorblue;
npfreg_t slopered;
npfreg_t slopealpha;
npfreg_t slopegrn;
npfreg_t slopeblue;
npireg_t wrmask;
npireg_t colori;
npfreg_t colorx;
npfreg_t slopered1;
npireg_t hostrw0;
npireg_t hostrw1;
npireg_t dcbmode;
#define NPORT_DMODE_WMASK 0x00000003
#define NPORT_DMODE_W4 0x00000000
#define NPORT_DMODE_W1 0x00000001
#define NPORT_DMODE_W2 0x00000002
#define NPORT_DMODE_W3 0x00000003
#define NPORT_DMODE_EDPACK 0x00000004
#define NPORT_DMODE_ECINC 0x00000008
#define NPORT_DMODE_CMASK 0x00000070
#define NPORT_DMODE_AMASK 0x00000780
#define NPORT_DMODE_AVC2 0x00000000
#define NPORT_DMODE_ACMALL 0x00000080
#define NPORT_DMODE_ACM0 0x00000100
#define NPORT_DMODE_ACM1 0x00000180
#define NPORT_DMODE_AXMALL 0x00000200
#define NPORT_DMODE_AXM0 0x00000280
#define NPORT_DMODE_AXM1 0x00000300
#define NPORT_DMODE_ABT 0x00000380
#define NPORT_DMODE_AVCC1 0x00000400
#define NPORT_DMODE_AVAB1 0x00000480
#define NPORT_DMODE_ALG3V0 0x00000500
#define NPORT_DMODE_A1562 0x00000580
#define NPORT_DMODE_ESACK 0x00000800
#define NPORT_DMODE_EASACK 0x00001000
#define NPORT_DMODE_CWMASK 0x0003e000
#define NPORT_DMODE_CHMASK 0x007c0000
#define NPORT_DMODE_CSMASK 0x0f800000
#define NPORT_DMODE_SENDIAN 0x10000000
unsigned long _unused3;
union np_dcb dcbdata0;
npireg_t dcbdata1;
};
struct newport_cregs {
npireg_t smask1x;
npireg_t smask1y;
npireg_t smask2x;
npireg_t smask2y;
npireg_t smask3x;
npireg_t smask3y;
npireg_t smask4x;
npireg_t smask4y;
npireg_t topscan;
npireg_t xywin;
npireg_t clipmode;
#define NPORT_CMODE_SM0 0x00000001
#define NPORT_CMODE_SM1 0x00000002
#define NPORT_CMODE_SM2 0x00000004
#define NPORT_CMODE_SM3 0x00000008
#define NPORT_CMODE_SM4 0x00000010
#define NPORT_CMODE_CMSK 0x00001e00
unsigned long _unused0;
unsigned long config;
#define NPORT_CFG_G32MD 0x00000001
#define NPORT_CFG_BWIDTH 0x00000002
#define NPORT_CFG_ERCVR 0x00000004
#define NPORT_CFG_BDMSK 0x00000078
#define NPORT_CFG_GDMSK 0x00000f80
#define NPORT_CFG_GD0 0x00000080
#define NPORT_CFG_GD1 0x00000100
#define NPORT_CFG_GD2 0x00000200
#define NPORT_CFG_GD3 0x00000400
#define NPORT_CFG_GD4 0x00000800
#define NPORT_CFG_GFAINT 0x00001000
#define NPORT_CFG_TOMSK 0x0000e000
#define NPORT_CFG_VRMSK 0x00070000
#define NPORT_CFG_FBTYP 0x00080000
npireg_t _unused1;
npireg_t stat;
#define NPORT_STAT_VERS 0x00000007
#define NPORT_STAT_GBUSY 0x00000008
#define NPORT_STAT_BBUSY 0x00000010
#define NPORT_STAT_VRINT 0x00000020
#define NPORT_STAT_VIDINT 0x00000040
#define NPORT_STAT_GLMSK 0x00001f80
#define NPORT_STAT_BLMSK 0x0007e000
#define NPORT_STAT_BFIRQ 0x00080000
#define NPORT_STAT_GFIRQ 0x00100000
npireg_t ustat;
npireg_t dreset;
};
struct newport_regs {
struct newport_rexregs set;
unsigned long _unused0[0x16e];
struct newport_rexregs go;
unsigned long _unused1[0x22e];
struct newport_cregs cset;
unsigned long _unused2[0x1ef];
struct newport_cregs cgo;
};
extern struct newport_regs *npregs;
typedef struct {
unsigned int drawmode1;
unsigned int drawmode0;
unsigned int lsmode;
unsigned int lspattern;
unsigned int lspatsave;
unsigned int zpattern;
unsigned int colorback;
unsigned int colorvram;
unsigned int alpharef;
unsigned int smask0x;
unsigned int smask0y;
unsigned int _xstart;
unsigned int _ystart;
unsigned int _xend;
unsigned int _yend;
unsigned int xsave;
unsigned int xymove;
unsigned int bresd;
unsigned int bress1;
unsigned int bresoctinc1;
unsigned int bresrndinc2;
unsigned int brese1;
unsigned int bress2;
unsigned int aweight0;
unsigned int aweight1;
unsigned int colorred;
unsigned int coloralpha;
unsigned int colorgrn;
unsigned int colorblue;
unsigned int slopered;
unsigned int slopealpha;
unsigned int slopegrn;
unsigned int slopeblue;
unsigned int wrmask;
unsigned int hostrw0;
unsigned int hostrw1;
/* configregs */
unsigned int smask1x;
unsigned int smask1y;
unsigned int smask2x;
unsigned int smask2y;
unsigned int smask3x;
unsigned int smask3y;
unsigned int smask4x;
unsigned int smask4y;
unsigned int topscan;
unsigned int xywin;
unsigned int clipmode;
unsigned int config;
/* dcb registers */
unsigned int dcbmode;
unsigned int dcbdata0;
unsigned int dcbdata1;
} newport_ctx;
/* Reading/writing VC2 registers. */
#define VC2_REGADDR_INDEX 0x00000000
#define VC2_REGADDR_IREG 0x00000010
#define VC2_REGADDR_RAM 0x00000030
#define VC2_PROTOCOL (NPORT_DMODE_EASACK | 0x00800000 | 0x00040000)
#define VC2_VLINET_ADDR 0x000
#define VC2_VFRAMET_ADDR 0x400
#define VC2_CGLYPH_ADDR 0x500
/* Now the Indexed registers of the VC2. */
#define VC2_IREG_VENTRY 0x00
#define VC2_IREG_CENTRY 0x01
#define VC2_IREG_CURSX 0x02
#define VC2_IREG_CURSY 0x03
#define VC2_IREG_CCURSX 0x04
#define VC2_IREG_DENTRY 0x05
#define VC2_IREG_SLEN 0x06
#define VC2_IREG_RADDR 0x07
#define VC2_IREG_VFPTR 0x08
#define VC2_IREG_VLSPTR 0x09
#define VC2_IREG_VLIR 0x0a
#define VC2_IREG_VLCTR 0x0b
#define VC2_IREG_CTPTR 0x0c
#define VC2_IREG_WCURSY 0x0d
#define VC2_IREG_DFPTR 0x0e
#define VC2_IREG_DLTPTR 0x0f
#define VC2_IREG_CONTROL 0x10
#define VC2_IREG_CONFIG 0x20
extern inline void newport_vc2_set(struct newport_regs *regs, unsigned char vc2ireg,
unsigned short val)
{
regs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_INDEX | NPORT_DMODE_W3 |
NPORT_DMODE_ECINC | VC2_PROTOCOL);
regs->set.dcbdata0.all = (vc2ireg << 24) | (val << 8);
}
extern inline unsigned short newport_vc2_get(struct newport_regs *regs,
unsigned char vc2ireg)
{
regs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_INDEX | NPORT_DMODE_W1 |
NPORT_DMODE_ECINC | VC2_PROTOCOL);
regs->set.dcbdata0.bytes.b3 = vc2ireg;
regs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_IREG | NPORT_DMODE_W2 |
NPORT_DMODE_ECINC | VC2_PROTOCOL);
return regs->set.dcbdata0.hwords.s1;
}
/* VC2 Control register bits */
#define VC2_CTRL_EVIRQ 0x0001
#define VC2_CTRL_EDISP 0x0002
#define VC2_CTRL_EVIDEO 0x0004
#define VC2_CTRL_EDIDS 0x0008
#define VC2_CTRL_ECURS 0x0010
#define VC2_CTRL_EGSYNC 0x0020
#define VC2_CTRL_EILACE 0x0040
#define VC2_CTRL_ECDISP 0x0080
#define VC2_CTRL_ECCURS 0x0100
#define VC2_CTRL_ECG64 0x0200
#define VC2_CTRL_GLSEL 0x0400
/* Controlling the color map on NEWPORT. */
#define NCMAP_REGADDR_AREG 0x00000000
#define NCMAP_REGADDR_ALO 0x00000000
#define NCMAP_REGADDR_AHI 0x00000010
#define NCMAP_REGADDR_PBUF 0x00000020
#define NCMAP_REGADDR_CREG 0x00000030
#define NCMAP_REGADDR_SREG 0x00000040
#define NCMAP_REGADDR_RREG 0x00000060
#define NCMAP_PROTOCOL (0x00008000 | 0x00040000 | 0x00800000)
static inline void newport_cmap_setaddr(struct newport_regs *regs,
unsigned short addr)
{
regs->set.dcbmode = (NPORT_DMODE_ACMALL | NCMAP_PROTOCOL |
NPORT_DMODE_SENDIAN | NPORT_DMODE_ECINC |
NCMAP_REGADDR_AREG | NPORT_DMODE_W2);
regs->set.dcbdata0.hwords.s1 = addr;
regs->set.dcbmode = (NPORT_DMODE_ACMALL | NCMAP_PROTOCOL |
NCMAP_REGADDR_PBUF | NPORT_DMODE_W3);
}
static inline void newport_cmap_setrgb(struct newport_regs *regs,
unsigned char red,
unsigned char green,
unsigned char blue)
{
regs->set.dcbdata0.all =
(red << 24) |
(green << 16) |
(blue << 8);
}
/* Miscellaneous NEWPORT routines. */
#define BUSY_TIMEOUT 100000
static inline int newport_wait(void)
{
int i = 0;
while(i < BUSY_TIMEOUT)
if(!(npregs->cset.stat & NPORT_STAT_GBUSY))
break;
if(i == BUSY_TIMEOUT)
return 1;
return 0;
}
static inline int newport_bfwait(void)
{
int i = 0;
while(i < BUSY_TIMEOUT)
if(!(npregs->cset.stat & NPORT_STAT_BBUSY))
break;
if(i == BUSY_TIMEOUT)
return 1;
return 0;
}
/* newport.c and cons_newport.c routines */
extern struct graphics_ops *newport_probe (int, const char **);
void newport_save (void *);
void newport_restore (void *);
void newport_reset (void);
int newport_ioctl (int card, int cmd, unsigned long arg);
/*
* DCBMODE register defines:
*/
/* Widht of the data being transfered for each DCBDATA[01] word */
#define DCB_DATAWIDTH_4 0x0
#define DCB_DATAWIDTH_1 0x1
#define DCB_DATAWIDTH_2 0x2
#define DCB_DATAWIDTH_3 0x3
/* If set, all of DCBDATA will be moved, otherwise only DATAWIDTH bytes */
#define DCB_ENDATAPACK (1 << 2)
/* Enables DCBCRS auto increment after each DCB transfer */
#define DCB_ENCRSINC (1 << 3)
/* shift for accessing the control register select address (DBCCRS, 3 bits) */
#define DCB_CRS_SHIFT 4
/* DCBADDR (4 bits): display bus slave address */
#define DCB_ADDR_SHIFT 7
#define DCB_VC2 (0 << DCB_ADDR_SHIFT)
#define DCB_CMAP_ALL (1 << DCB_ADDR_SHIFT)
#define DCB_CMAP0 (2 << DCB_ADDR_SHIFT)
#define DCB_CMAP1 (3 << DCB_ADDR_SHIFT)
#define DCB_XMAP_ALL (4 << DCB_ADDR_SHIFT)
#define DCB_XMAP0 (5 << DCB_ADDR_SHIFT)
#define DCB_XMAP1 (6 << DCB_ADDR_SHIFT)
#define DCB_BT445 (7 << DCB_ADDR_SHIFT)
#define DCB_VCC1 (8 << DCB_ADDR_SHIFT)
#define DCB_VAB1 (9 << DCB_ADDR_SHIFT)
#define DCB_LG3_BDVERS0 (10 << DCB_ADDR_SHIFT)
#define DCB_LG3_ICS1562 (11 << DCB_ADDR_SHIFT)
#define DCB_RESERVED (15 << DCB_ADDR_SHIFT)
/* DCB protocol ack types */
#define DCB_ENSYNCACK (1 << 11)
#define DCB_ENASYNCACK (1 << 12)
#define DCB_CSWIDTH_SHIFT 13
#define DCB_CSHOLD_SHIFT 18
#define DCB_CSSETUP_SHIFT 23
/* XMAP9 specific defines */
/* XMAP9 -- registers as seen on the DCBMODE register*/
# define XM9_CRS_CONFIG (0 << DCB_CRS_SHIFT)
# define XM9_PUPMODE (1 << 0)
# define XM9_ODD_PIXEL (1 << 1)
# define XM9_8_BITPLANES (1 << 2)
# define XM9_SLOW_DCB (1 << 3)
# define XM9_VIDEO_RGBMAP_MASK (3 << 4)
# define XM9_EXPRESS_VIDEO (1 << 6)
# define XM9_VIDEO_OPTION (1 << 7)
# define XM9_CRS_REVISION (1 << DCB_CRS_SHIFT)
# define XM9_CRS_FIFO_AVAIL (2 << DCB_CRS_SHIFT)
# define XM9_FIFO_0_AVAIL 0
# define XM9_FIFO_1_AVAIL 1
# define XM9_FIFO_2_AVAIL 3
# define XM9_FIFO_3_AVAIL 2
# define XM9_FIFO_FULL XM9_FIFO_0_AVAIL
# define XM9_FIFO_EMPTY XM9_FIFO_3_AVAIL
# define XM9_CRS_CURS_CMAP_MSB (3 << DCB_CRS_SHIFT)
# define XM9_CRS_PUP_CMAP_MSB (4 << DCB_CRS_SHIFT)
# define XM9_CRS_MODE_REG_DATA (5 << DCB_CRS_SHIFT)
# define XM9_CRS_MODE_REG_INDEX (7 << DCB_CRS_SHIFT)
#define DCB_CYCLES(setup,hold,width) \
((hold << DCB_CSHOLD_SHIFT) | \
(setup << DCB_CSSETUP_SHIFT)| \
(width << DCB_CSWIDTH_SHIFT))
#define W_DCB_XMAP9_PROTOCOL DCB_CYCLES (2, 1, 0)
#define WSLOW_DCB_XMAP9_PROTOCOL DCB_CYCLES (5, 5, 0)
#define WAYSLOW_DCB_XMAP9_PROTOCOL DCB_CYCLES (12, 12, 0)
#define R_DCB_XMAP9_PROTOCOL DCB_CYCLES (2, 1, 3)
static inline void
xmap9FIFOWait (struct newport_regs *rex)
{
rex->set.dcbmode = DCB_XMAP0 | XM9_CRS_FIFO_AVAIL |
DCB_DATAWIDTH_1 | R_DCB_XMAP9_PROTOCOL;
newport_bfwait ();
while ((rex->set.dcbdata0.bytes.b3 & 3) != XM9_FIFO_EMPTY)
;
}
static inline void
xmap9SetModeReg (struct newport_regs *rex, unsigned int modereg, unsigned int data24, int cfreq)
{
if (cfreq > 119)
rex->set.dcbmode = DCB_XMAP_ALL | XM9_CRS_MODE_REG_DATA |
DCB_DATAWIDTH_4 | W_DCB_XMAP9_PROTOCOL;
else if (cfreq > 59)
rex->set.dcbmode = DCB_XMAP_ALL | XM9_CRS_MODE_REG_DATA |
DCB_DATAWIDTH_4 | WSLOW_DCB_XMAP9_PROTOCOL;
else
rex->set.dcbmode = DCB_XMAP_ALL | XM9_CRS_MODE_REG_DATA |
DCB_DATAWIDTH_4 | WAYSLOW_DCB_XMAP9_PROTOCOL;
rex->set.dcbdata0.all = ((modereg) << 24) | (data24 & 0xffffff);
}
#endif /* !(_SGI_NEWPORT_H) */
/* $Id: newport.h,v 1.5 1997/09/21 23:06:05 miguel Exp $
* newport.h: Defines and register layout for NEWPORT graphics
* hardware.
*
* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
*/
#ifndef _SGI_NEWPORT_H
#define _SGI_NEWPORT_H
typedef volatile unsigned long npireg_t;
union npfloat {
volatile float f;
npireg_t i;
};
typedef union npfloat npfreg_t;
union np_dcb {
npireg_t all;
struct { volatile unsigned short s0, s1; } hwords;
struct { volatile unsigned char b0, b1, b2, b3; } bytes;
};
struct newport_rexregs {
npireg_t drawmode1; /* GL extra mode bits */
#define DM1_PLANES 0x00000007
#define DM1_NOPLANES 0x00000000
#define DM1_RGBPLANES 0x00000001
#define DM1_RGBAPLANES 0x00000002
#define DM1_OLAYPLANES 0x00000004
#define DM1_PUPPLANES 0x00000005
#define DM1_CIDPLANES 0x00000006
#define NPORT_DMODE1_DDMASK 0x00000018
#define NPORT_DMODE1_DD4 0x00000000
#define NPORT_DMODE1_DD8 0x00000008
#define NPORT_DMODE1_DD12 0x00000010
#define NPORT_DMODE1_DD24 0x00000018
#define NPORT_DMODE1_DSRC 0x00000020
#define NPORT_DMODE1_YFLIP 0x00000040
#define NPORT_DMODE1_RWPCKD 0x00000080
#define NPORT_DMODE1_HDMASK 0x00000300
#define NPORT_DMODE1_HD4 0x00000000
#define NPORT_DMODE1_HD8 0x00000100
#define NPORT_DMODE1_HD12 0x00000200
#define NPORT_DMODE1_HD32 0x00000300
#define NPORT_DMODE1_RWDBL 0x00000400
#define NPORT_DMODE1_ESWAP 0x00000800 /* Endian swap */
#define NPORT_DMODE1_CCMASK 0x00007000
#define NPORT_DMODE1_CCLT 0x00001000
#define NPORT_DMODE1_CCEQ 0x00002000
#define NPORT_DMODE1_CCGT 0x00004000
#define NPORT_DMODE1_RGBMD 0x00008000
#define NPORT_DMODE1_DENAB 0x00010000 /* Dither enable */
#define NPORT_DMODE1_FCLR 0x00020000 /* Fast clear */
#define NPORT_DMODE1_BENAB 0x00040000 /* Blend enable */
#define NPORT_DMODE1_SFMASK 0x00380000
#define NPORT_DMODE1_SF0 0x00000000
#define NPORT_DMODE1_SF1 0x00080000
#define NPORT_DMODE1_SFDC 0x00100000
#define NPORT_DMODE1_SFMDC 0x00180000
#define NPORT_DMODE1_SFSA 0x00200000
#define NPORT_DMODE1_SFMSA 0x00280000
#define NPORT_DMODE1_DFMASK 0x01c00000
#define NPORT_DMODE1_DF0 0x00000000
#define NPORT_DMODE1_DF1 0x00400000
#define NPORT_DMODE1_DFSC 0x00800000
#define NPORT_DMODE1_DFMSC 0x00c00000
#define NPORT_DMODE1_DFSA 0x01000000
#define NPORT_DMODE1_DFMSA 0x01400000
#define NPORT_DMODE1_BBENAB 0x02000000 /* Back blend enable */
#define NPORT_DMODE1_PFENAB 0x04000000 /* Pre-fetch enable */
#define NPORT_DMODE1_ABLEND 0x08000000 /* Alpha blend */
#define NPORT_DMODE1_LOMASK 0xf0000000
#define NPORT_DMODE1_LOZERO 0x00000000
#define NPORT_DMODE1_LOAND 0x10000000
#define NPORT_DMODE1_LOANDR 0x20000000
#define NPORT_DMODE1_LOSRC 0x30000000
#define NPORT_DMODE1_LOANDI 0x40000000
#define NPORT_DMODE1_LODST 0x50000000
#define NPORT_DMODE1_LOXOR 0x60000000
#define NPORT_DMODE1_LOOR 0x70000000
#define NPORT_DMODE1_LONOR 0x80000000
#define NPORT_DMODE1_LOXNOR 0x90000000
#define NPORT_DMODE1_LONDST 0xa0000000
#define NPORT_DMODE1_LOORR 0xb0000000
#define NPORT_DMODE1_LONSRC 0xc0000000
#define NPORT_DMODE1_LOORI 0xd0000000
#define NPORT_DMODE1_LONAND 0xe0000000
#define NPORT_DMODE1_LOONE 0xf0000000
npireg_t drawmode0; /* REX command register */
/* These bits define the graphics opcode being performed. */
#define NPORT_DMODE0_OPMASK 0x00000003 /* Opcode mask */
#define NPORT_DMODE0_NOP 0x00000000 /* No operation */
#define NPORT_DMODE0_RD 0x00000001 /* Read operation */
#define NPORT_DMODE0_DRAW 0x00000002 /* Draw operation */
#define NPORT_DMODE0_S2S 0x00000003 /* Screen to screen operation */
/* The following decide what addressing mode(s) are to be used */
#define NPORT_DMODE0_AMMASK 0x0000001c /* Address mode mask */
#define NPORT_DMODE0_SPAN 0x00000000 /* Spanning address mode */
#define NPORT_DMODE0_BLOCK 0x00000004 /* Block address mode */
#define NPORT_DMODE0_ILINE 0x00000008 /* Iline address mode */
#define NPORT_DMODE0_FLINE 0x0000000c /* Fline address mode */
#define NPORT_DMODE0_ALINE 0x00000010 /* Aline address mode */
#define NPORT_DMODE0_TLINE 0x00000014 /* Tline address mode */
#define NPORT_DMODE0_BLINE 0x00000018 /* Bline address mode */
/* And now some misc. operation control bits. */
#define NPORT_DMODE0_DOSETUP 0x00000020
#define NPORT_DMODE0_CHOST 0x00000040
#define NPORT_DMODE0_AHOST 0x00000080
#define NPORT_DMODE0_STOPX 0x00000100
#define NPORT_DMODE0_STOPY 0x00000200
#define NPORT_DMODE0_SK1ST 0x00000400
#define NPORT_DMODE0_SKLST 0x00000800
#define NPORT_DMODE0_ZPENAB 0x00001000
#define NPORT_DMODE0_LISPENAB 0x00002000
#define NPORT_DMODE0_LISLST 0x00004000
#define NPORT_DMODE0_L32 0x00008000
#define NPORT_DMODE0_ZOPQ 0x00010000
#define NPORT_DMODE0_LISOPQ 0x00020000
#define NPORT_DMODE0_SHADE 0x00040000
#define NPORT_DMODE0_LRONLY 0x00080000
#define NPORT_DMODE0_XYOFF 0x00100000
#define NPORT_DMODE0_CLAMP 0x00200000
#define NPORT_DMODE0_ENDPF 0x00400000
#define NPORT_DMODE0_YSTR 0x00800000
npireg_t lsmode; /* Mode for line stipple ops */
npireg_t lspattern; /* Pattern for line stipple ops */
npireg_t lspatsave; /* Backup save pattern */
npireg_t zpattern; /* Pixel zpattern */
npireg_t colorback; /* Background color */
npireg_t colorvram; /* Clear color for fast vram */
npireg_t alpharef; /* Reference value for afunctions */
unsigned long pad0;
npireg_t smask0x; /* Window GL relative screen mask 0 */
npireg_t smask0y; /* Window GL relative screen mask 0 */
npireg_t _setup;
npireg_t _stepz;
npireg_t _lsrestore;
npireg_t _lssave;
unsigned long _pad1[0x30];
/* Iterators, full state for context switch */
npfreg_t _xstart; /* X-start point (current) */
npfreg_t _ystart; /* Y-start point (current) */
npfreg_t _xend; /* x-end point */
npfreg_t _yend; /* y-end point */
npireg_t xsave; /* copy of xstart integer value for BLOCk addressing MODE */
npireg_t xymove; /* x.y offset from xstart, ystart for relative operations */
npfreg_t bresd;
npfreg_t bress1;;
npireg_t bresoctinc1;
volatile int bresrndinc2;
npireg_t brese1;
npireg_t bress2;
npireg_t aweight0;
npireg_t aweight1;
npfreg_t xstartf;
npfreg_t ystartf;
npfreg_t xendf;
npfreg_t yendf;
npireg_t xstarti;
npfreg_t xendf1;
npireg_t xystarti;
npireg_t xyendi;
npireg_t xstartendi;
unsigned long _unused2[0x29];
npfreg_t colorred;
npfreg_t coloralpha;
npfreg_t colorgrn;
npfreg_t colorblue;
npfreg_t slopered;
npfreg_t slopealpha;
npfreg_t slopegrn;
npfreg_t slopeblue;
npireg_t wrmask;
npireg_t colori;
npfreg_t colorx;
npfreg_t slopered1;
npireg_t hostrw0;
npireg_t hostrw1;
npireg_t dcbmode;
#define NPORT_DMODE_WMASK 0x00000003
#define NPORT_DMODE_W4 0x00000000
#define NPORT_DMODE_W1 0x00000001
#define NPORT_DMODE_W2 0x00000002
#define NPORT_DMODE_W3 0x00000003
#define NPORT_DMODE_EDPACK 0x00000004
#define NPORT_DMODE_ECINC 0x00000008
#define NPORT_DMODE_CMASK 0x00000070
#define NPORT_DMODE_AMASK 0x00000780
#define NPORT_DMODE_AVC2 0x00000000
#define NPORT_DMODE_ACMALL 0x00000080
#define NPORT_DMODE_ACM0 0x00000100
#define NPORT_DMODE_ACM1 0x00000180
#define NPORT_DMODE_AXMALL 0x00000200
#define NPORT_DMODE_AXM0 0x00000280
#define NPORT_DMODE_AXM1 0x00000300
#define NPORT_DMODE_ABT 0x00000380
#define NPORT_DMODE_AVCC1 0x00000400
#define NPORT_DMODE_AVAB1 0x00000480
#define NPORT_DMODE_ALG3V0 0x00000500
#define NPORT_DMODE_A1562 0x00000580
#define NPORT_DMODE_ESACK 0x00000800
#define NPORT_DMODE_EASACK 0x00001000
#define NPORT_DMODE_CWMASK 0x0003e000
#define NPORT_DMODE_CHMASK 0x007c0000
#define NPORT_DMODE_CSMASK 0x0f800000
#define NPORT_DMODE_SENDIAN 0x10000000
unsigned long _unused3;
union np_dcb dcbdata0;
npireg_t dcbdata1;
};
struct newport_cregs {
npireg_t smask1x;
npireg_t smask1y;
npireg_t smask2x;
npireg_t smask2y;
npireg_t smask3x;
npireg_t smask3y;
npireg_t smask4x;
npireg_t smask4y;
npireg_t topscan;
npireg_t xywin;
npireg_t clipmode;
#define NPORT_CMODE_SM0 0x00000001
#define NPORT_CMODE_SM1 0x00000002
#define NPORT_CMODE_SM2 0x00000004
#define NPORT_CMODE_SM3 0x00000008
#define NPORT_CMODE_SM4 0x00000010
#define NPORT_CMODE_CMSK 0x00001e00
unsigned long _unused0;
unsigned long config;
#define NPORT_CFG_G32MD 0x00000001
#define NPORT_CFG_BWIDTH 0x00000002
#define NPORT_CFG_ERCVR 0x00000004
#define NPORT_CFG_BDMSK 0x00000078
#define NPORT_CFG_GDMSK 0x00000f80
#define NPORT_CFG_GD0 0x00000080
#define NPORT_CFG_GD1 0x00000100
#define NPORT_CFG_GD2 0x00000200
#define NPORT_CFG_GD3 0x00000400
#define NPORT_CFG_GD4 0x00000800
#define NPORT_CFG_GFAINT 0x00001000
#define NPORT_CFG_TOMSK 0x0000e000
#define NPORT_CFG_VRMSK 0x00070000
#define NPORT_CFG_FBTYP 0x00080000
npireg_t _unused1;
npireg_t stat;
#define NPORT_STAT_VERS 0x00000007
#define NPORT_STAT_GBUSY 0x00000008
#define NPORT_STAT_BBUSY 0x00000010
#define NPORT_STAT_VRINT 0x00000020
#define NPORT_STAT_VIDINT 0x00000040
#define NPORT_STAT_GLMSK 0x00001f80
#define NPORT_STAT_BLMSK 0x0007e000
#define NPORT_STAT_BFIRQ 0x00080000
#define NPORT_STAT_GFIRQ 0x00100000
npireg_t ustat;
npireg_t dreset;
};
struct newport_regs {
struct newport_rexregs set;
unsigned long _unused0[0x16e];
struct newport_rexregs go;
unsigned long _unused1[0x22e];
struct newport_cregs cset;
unsigned long _unused2[0x1ef];
struct newport_cregs cgo;
};
extern struct newport_regs *npregs;
typedef struct {
unsigned int drawmode1;
unsigned int drawmode0;
unsigned int lsmode;
unsigned int lspattern;
unsigned int lspatsave;
unsigned int zpattern;
unsigned int colorback;
unsigned int colorvram;
unsigned int alpharef;
unsigned int smask0x;
unsigned int smask0y;
unsigned int _xstart;
unsigned int _ystart;
unsigned int _xend;
unsigned int _yend;
unsigned int xsave;
unsigned int xymove;
unsigned int bresd;
unsigned int bress1;
unsigned int bresoctinc1;
unsigned int bresrndinc2;
unsigned int brese1;
unsigned int bress2;
unsigned int aweight0;
unsigned int aweight1;
unsigned int colorred;
unsigned int coloralpha;
unsigned int colorgrn;
unsigned int colorblue;
unsigned int slopered;
unsigned int slopealpha;
unsigned int slopegrn;
unsigned int slopeblue;
unsigned int wrmask;
unsigned int hostrw0;
unsigned int hostrw1;
/* configregs */
unsigned int smask1x;
unsigned int smask1y;
unsigned int smask2x;
unsigned int smask2y;
unsigned int smask3x;
unsigned int smask3y;
unsigned int smask4x;
unsigned int smask4y;
unsigned int topscan;
unsigned int xywin;
unsigned int clipmode;
unsigned int config;
/* dcb registers */
unsigned int dcbmode;
unsigned int dcbdata0;
unsigned int dcbdata1;
} newport_ctx;
/* Reading/writing VC2 registers. */
#define VC2_REGADDR_INDEX 0x00000000
#define VC2_REGADDR_IREG 0x00000010
#define VC2_REGADDR_RAM 0x00000030
#define VC2_PROTOCOL (NPORT_DMODE_EASACK | 0x00800000 | 0x00040000)
#define VC2_VLINET_ADDR 0x000
#define VC2_VFRAMET_ADDR 0x400
#define VC2_CGLYPH_ADDR 0x500
/* Now the Indexed registers of the VC2. */
#define VC2_IREG_VENTRY 0x00
#define VC2_IREG_CENTRY 0x01
#define VC2_IREG_CURSX 0x02
#define VC2_IREG_CURSY 0x03
#define VC2_IREG_CCURSX 0x04
#define VC2_IREG_DENTRY 0x05
#define VC2_IREG_SLEN 0x06
#define VC2_IREG_RADDR 0x07
#define VC2_IREG_VFPTR 0x08
#define VC2_IREG_VLSPTR 0x09
#define VC2_IREG_VLIR 0x0a
#define VC2_IREG_VLCTR 0x0b
#define VC2_IREG_CTPTR 0x0c
#define VC2_IREG_WCURSY 0x0d
#define VC2_IREG_DFPTR 0x0e
#define VC2_IREG_DLTPTR 0x0f
#define VC2_IREG_CONTROL 0x10
#define VC2_IREG_CONFIG 0x20
extern inline void newport_vc2_set(struct newport_regs *regs, unsigned char vc2ireg,
unsigned short val)
{
regs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_INDEX | NPORT_DMODE_W3 |
NPORT_DMODE_ECINC | VC2_PROTOCOL);
regs->set.dcbdata0.all = (vc2ireg << 24) | (val << 8);
}
extern inline unsigned short newport_vc2_get(struct newport_regs *regs,
unsigned char vc2ireg)
{
regs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_INDEX | NPORT_DMODE_W1 |
NPORT_DMODE_ECINC | VC2_PROTOCOL);
regs->set.dcbdata0.bytes.b3 = vc2ireg;
regs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_IREG | NPORT_DMODE_W2 |
NPORT_DMODE_ECINC | VC2_PROTOCOL);
return regs->set.dcbdata0.hwords.s1;
}
/* VC2 Control register bits */
#define VC2_CTRL_EVIRQ 0x0001
#define VC2_CTRL_EDISP 0x0002
#define VC2_CTRL_EVIDEO 0x0004
#define VC2_CTRL_EDIDS 0x0008
#define VC2_CTRL_ECURS 0x0010
#define VC2_CTRL_EGSYNC 0x0020
#define VC2_CTRL_EILACE 0x0040
#define VC2_CTRL_ECDISP 0x0080
#define VC2_CTRL_ECCURS 0x0100
#define VC2_CTRL_ECG64 0x0200
#define VC2_CTRL_GLSEL 0x0400
/* Controlling the color map on NEWPORT. */
#define NCMAP_REGADDR_AREG 0x00000000
#define NCMAP_REGADDR_ALO 0x00000000
#define NCMAP_REGADDR_AHI 0x00000010
#define NCMAP_REGADDR_PBUF 0x00000020
#define NCMAP_REGADDR_CREG 0x00000030
#define NCMAP_REGADDR_SREG 0x00000040
#define NCMAP_REGADDR_RREG 0x00000060
#define NCMAP_PROTOCOL (0x00008000 | 0x00040000 | 0x00800000)
static inline void newport_cmap_setaddr(struct newport_regs *regs,
unsigned short addr)
{
regs->set.dcbmode = (NPORT_DMODE_ACMALL | NCMAP_PROTOCOL |
NPORT_DMODE_SENDIAN | NPORT_DMODE_ECINC |
NCMAP_REGADDR_AREG | NPORT_DMODE_W2);
regs->set.dcbdata0.hwords.s1 = addr;
regs->set.dcbmode = (NPORT_DMODE_ACMALL | NCMAP_PROTOCOL |
NCMAP_REGADDR_PBUF | NPORT_DMODE_W3);
}
static inline void newport_cmap_setrgb(struct newport_regs *regs,
unsigned char red,
unsigned char green,
unsigned char blue)
{
regs->set.dcbdata0.all =
(red << 24) |
(green << 16) |
(blue << 8);
}
/* Miscellaneous NEWPORT routines. */
#define BUSY_TIMEOUT 100000
static inline int newport_wait(void)
{
int i = 0;
while(i < BUSY_TIMEOUT)
if(!(npregs->cset.stat & NPORT_STAT_GBUSY))
break;
if(i == BUSY_TIMEOUT)
return 1;
return 0;
}
static inline int newport_bfwait(void)
{
int i = 0;
while(i < BUSY_TIMEOUT)
if(!(npregs->cset.stat & NPORT_STAT_BBUSY))
break;
if(i == BUSY_TIMEOUT)
return 1;
return 0;
}
/* newport.c and cons_newport.c routines */
extern struct graphics_ops *newport_probe (int, const char **);
void newport_save (void *);
void newport_restore (void *);
void newport_reset (void);
int newport_ioctl (int card, int cmd, unsigned long arg);
/*
* DCBMODE register defines:
*/
/* Widht of the data being transfered for each DCBDATA[01] word */
#define DCB_DATAWIDTH_4 0x0
#define DCB_DATAWIDTH_1 0x1
#define DCB_DATAWIDTH_2 0x2
#define DCB_DATAWIDTH_3 0x3
/* If set, all of DCBDATA will be moved, otherwise only DATAWIDTH bytes */
#define DCB_ENDATAPACK (1 << 2)
/* Enables DCBCRS auto increment after each DCB transfer */
#define DCB_ENCRSINC (1 << 3)
/* shift for accessing the control register select address (DBCCRS, 3 bits) */
#define DCB_CRS_SHIFT 4
/* DCBADDR (4 bits): display bus slave address */
#define DCB_ADDR_SHIFT 7
#define DCB_VC2 (0 << DCB_ADDR_SHIFT)
#define DCB_CMAP_ALL (1 << DCB_ADDR_SHIFT)
#define DCB_CMAP0 (2 << DCB_ADDR_SHIFT)
#define DCB_CMAP1 (3 << DCB_ADDR_SHIFT)
#define DCB_XMAP_ALL (4 << DCB_ADDR_SHIFT)
#define DCB_XMAP0 (5 << DCB_ADDR_SHIFT)
#define DCB_XMAP1 (6 << DCB_ADDR_SHIFT)
#define DCB_BT445 (7 << DCB_ADDR_SHIFT)
#define DCB_VCC1 (8 << DCB_ADDR_SHIFT)
#define DCB_VAB1 (9 << DCB_ADDR_SHIFT)
#define DCB_LG3_BDVERS0 (10 << DCB_ADDR_SHIFT)
#define DCB_LG3_ICS1562 (11 << DCB_ADDR_SHIFT)
#define DCB_RESERVED (15 << DCB_ADDR_SHIFT)
/* DCB protocol ack types */
#define DCB_ENSYNCACK (1 << 11)
#define DCB_ENASYNCACK (1 << 12)
#define DCB_CSWIDTH_SHIFT 13
#define DCB_CSHOLD_SHIFT 18
#define DCB_CSSETUP_SHIFT 23
/* XMAP9 specific defines */
/* XMAP9 -- registers as seen on the DCBMODE register*/
# define XM9_CRS_CONFIG (0 << DCB_CRS_SHIFT)
# define XM9_PUPMODE (1 << 0)
# define XM9_ODD_PIXEL (1 << 1)
# define XM9_8_BITPLANES (1 << 2)
# define XM9_SLOW_DCB (1 << 3)
# define XM9_VIDEO_RGBMAP_MASK (3 << 4)
# define XM9_EXPRESS_VIDEO (1 << 6)
# define XM9_VIDEO_OPTION (1 << 7)
# define XM9_CRS_REVISION (1 << DCB_CRS_SHIFT)
# define XM9_CRS_FIFO_AVAIL (2 << DCB_CRS_SHIFT)
# define XM9_FIFO_0_AVAIL 0
# define XM9_FIFO_1_AVAIL 1
# define XM9_FIFO_2_AVAIL 3
# define XM9_FIFO_3_AVAIL 2
# define XM9_FIFO_FULL XM9_FIFO_0_AVAIL
# define XM9_FIFO_EMPTY XM9_FIFO_3_AVAIL
# define XM9_CRS_CURS_CMAP_MSB (3 << DCB_CRS_SHIFT)
# define XM9_CRS_PUP_CMAP_MSB (4 << DCB_CRS_SHIFT)
# define XM9_CRS_MODE_REG_DATA (5 << DCB_CRS_SHIFT)
# define XM9_CRS_MODE_REG_INDEX (7 << DCB_CRS_SHIFT)
#define DCB_CYCLES(setup,hold,width) \
((hold << DCB_CSHOLD_SHIFT) | \
(setup << DCB_CSSETUP_SHIFT)| \
(width << DCB_CSWIDTH_SHIFT))
#define W_DCB_XMAP9_PROTOCOL DCB_CYCLES (2, 1, 0)
#define WSLOW_DCB_XMAP9_PROTOCOL DCB_CYCLES (5, 5, 0)
#define WAYSLOW_DCB_XMAP9_PROTOCOL DCB_CYCLES (12, 12, 0)
#define R_DCB_XMAP9_PROTOCOL DCB_CYCLES (2, 1, 3)
static inline void
xmap9FIFOWait (struct newport_regs *rex)
{
rex->set.dcbmode = DCB_XMAP0 | XM9_CRS_FIFO_AVAIL |
DCB_DATAWIDTH_1 | R_DCB_XMAP9_PROTOCOL;
newport_bfwait ();
while ((rex->set.dcbdata0.bytes.b3 & 3) != XM9_FIFO_EMPTY)
;
}
static inline void
xmap9SetModeReg (struct newport_regs *rex, unsigned int modereg, unsigned int data24, int cfreq)
{
if (cfreq > 119)
rex->set.dcbmode = DCB_XMAP_ALL | XM9_CRS_MODE_REG_DATA |
DCB_DATAWIDTH_4 | W_DCB_XMAP9_PROTOCOL;
else if (cfreq > 59)
rex->set.dcbmode = DCB_XMAP_ALL | XM9_CRS_MODE_REG_DATA |
DCB_DATAWIDTH_4 | WSLOW_DCB_XMAP9_PROTOCOL;
else
rex->set.dcbmode = DCB_XMAP_ALL | XM9_CRS_MODE_REG_DATA |
DCB_DATAWIDTH_4 | WAYSLOW_DCB_XMAP9_PROTOCOL;
rex->set.dcbdata0.all = ((modereg) << 24) | (data24 & 0xffffff);
}
#endif /* !(_SGI_NEWPORT_H) */
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